Schumacher Electric SE-70MA Owner's manual

Brand: Schumacher Electric

Model: SE-70MA

Category: Battery chargers

Type: Owner's manual

Schumacher Electric SE-70MA is a fully automatic battery charger designed for charging lead-acid batteries commonly found in vehicles, boats, and RVs. With a 10-amp charging capacity and the ability to select between 12 and 24 volts, it can handle a wide range of battery sizes and types, including conventional, low maintenance, maintenance-free, and deep cycle batteries. The charger features three operation modes: manual, automatic for conventional and low maintenance batteries, and automatic for maintenance-free and deep cycle batteries.

1. Before you use your battery charger, be sure to read all

instructions and cautions printed on:

• Battery Charger

• Battery

• Vehicle or unit using battery

2. Use battery charger on LEAD ACID type rechargeable

batteries only, such as used in autos, trucks, tractors,

airplanes, vans, RV's, trolling motors, etc. Charger is not

intended to supply power to low-voltage electrical system

other than in an automotive application.

WARNING: Do

not use battery charger for charging dry-cell

batteries that are commonly used with home appliances.

These batteries may burst and cause injury to persons and

damage to property.

3. Use only attachments recommended or sold by

manufacturer. Use of non-recommended attachments may

result in fire, electric shock, or injury.

4. When disconnecting the battery charger, pull by the plug not

by the cord. Pulling on the cord may cause damage to cord

or plug.

5. Locate battery power cord so it cannot be stepped on, tripped

over, or subjected to damage or stress.

6. Do not operate charger with damaged cord or plug. Have

cord replaced immediately.

7. Do not operate charger if it has received a sharp blow, been

dropped, or otherwise damaged in any way. Take it to a

qualified professional for inspection and repair.

8. Do not disassemble charger. Take it to a qualified

professional when service or repair is required. Incorrect

reassembly may result in electric shock or fire.

9. To reduce risk of electric shock, unplug charger from outlet

before attempting any maintenance or cleaning.

10. Do not use an extension cord unless absolutely necessary.

Use of an improper extension cord could result in fire or

electric shock. If an extension cord must be used, make

sure that:

• Pins on plug of extension cord are the same number,

size, and shape as those of plug on charger.

• Extension cord is properly wired and in good electrical

condition.

• Wire size is large enough for AC ampere rating of charger,

as specified below:

AC INPUT RATING, AMPERES AWG SIZE OF CORD

Equal to or but less than Length of Cord, Feet

Greater than 25 50 100 150

0 2 18 18 18 16

2 3 18 18 16 14

6 8 18 16 12 10

11. Always charge battery in a well ventilated area.

NEVER operate in a closed-in or restricted area without

adequate ventilation.

WARNING: Risk of explosive gas.

12. Locate charger as far away from battery as DC charger cables

permit.

13. Do not expose charger to rain or snow.

14. NEVER charge a frozen battery. If battery fluid (electrolyte) is

frozen, bring into a warm area to thaw before charging.

15. NEVER allow battery acid to drip on charger when reading

specific gravity or filling battery.

16. NEVER set a battery on top of charger.

17. NEVER place charger directly above battery being charged.

Gases from battery will corrode and damage charger.

18. NEVER touch the battery clamps together when the charger

is energized.

A. GENERAL BATTERY SAFETY

–Save–

Important Safety Instructions

Owner's Manual

Battery

Charger

Model:

SE-70MA

Fully Automatic Battery Charger

10-Amp, 12/24 Volt

Read Rules for Safe Operation and Instructions Carefully

Working in vicinity of a lead-acid battery is dangerous. Batteries generate explosive gases during normal

battery operation. For this reason, it is of utmost importance that each time before using your charger, you

read this manual and follow the instructions exactly.

WARNING: Handling the cord on this product or cords associated with accessories sold with this product, will expose you to lead, a chemical

known to the State of California to cause cancer and birth defects or other reproductive harm.

Wash hands after handling.

00-00-000318/0103

SCHUMACHER ELECTRIC CORPORATION

801 BUSINESS CENTER DRIVE • MOUNT PROSPECT, ILLINOIS 60056-2179

Send Warranty Product Repairs to: 1025 E. Thompson, Hoopeston, IL 60942-0280

Call Customer Service if you have questions: 1-800-621-5485

1. Make sure you have a 12 or 24 volt lead-acid battery. Check

car owner manual to make sure.

2. Clean battery terminals. Take care to keep corrosion from

coming in contact with your eyes.

3. If required, add distilled water in each cell until battery acid

reaches levels specified by battery manufacturer. This helps

purge excessive gas from cells. Do not overfill. For a battery

without cell caps, carefully follow manufacturer's recharging

instructions.

4. Study all battery manufacturer's specific precautions, such

as removing or not removing cell caps while charging, and

recommended rates of charge.

5. Be sure area around battery is well ventilated while battery

is being charged. Gas can be forcefully blown away by using

a piece of cardboard or other non-metallic material as a fan.

6. If necessary to remove battery from vehicle to charge, always

remove grounded terminal from battery first. Make sure all

accessories in the vehicle are off, so as not to cause an arc.

7. A marine (boat) battery must be removed and charged on

shore. To charge it on board requires equipment specially

designed for marine use.

GROUNDING AND AC POWER CORD CONNECTION INSTRUC-

TIONS - Charger should be grounded to reduce risk of electric

shock. Charger is equipped with an electric cord having an equip-

ment-grounding conductor and a grounding plug. The plug must

be plugged into an outlet that is properly installed and grounded

in accordance with local codes and ordinances.

DANGER - Never alter AC cord or plug provided - if it will not fit

outlet, have proper outlet installed by a qualified electrician. Im-

proper connection can result in a risk of electric shock.

This battery charger is for use on a nominal 120-volt circuit, and

has a grounding plug that looks like the plug illustrated in sketch

A. A temporary adapter, which looks like the adapter illustrated in

sketch B, may be used to connect this plug to a two-pole recep-

tacle as shown in sketch B if a properly grounded outlet is not

available. The temporary adapter should be used only until a

properly grounded outlet can be installed by a qualified electri-

cian.

During operation do not place the charger or its cables on the

vehicle seat or carpeting.

1. WARNING: Wear complete eye protection and clothing

protection, when working with lead-acid batteries.

2. Make sure someone is within range of your voice or close

enough to come to your aid when you work with or near a

lead-acid battery.

3. Have plenty of fresh water and soap nearby for use if battery

acid contacts skin, clothing, or eyes. If battery acid contacts

skin or clothing, wash immediately with soap and water.

4. Avoid touching your eyes while working with a battery. Acid

particles (corrosion) may get into your eyes! If acid enters

your eye, immediately flood eye with running cold water for

at least 10 minutes. Get medical attention immediately.

5. Remove all personal metal items such as rings, bracelets,

necklaces, and watches when working with a lead-acid

battery. A lead-acid battery can produce a short-circuit current

high enough to weld a ring (or the like) to metal, causing a

severe burn.

6. Take care not to drop a metal tool or other metal onto the

battery. Metal may cause sparking or short circuit the battery

or another electrical devise. Sparking may cause an

explosion.

7. Always operate battery charger in an open well ventilated

area.

8. NEVER smoke or allow a spark or flame in the vicinity of the

battery or engine. Batteries generate explosive gases!

FIGURE 1: GROUNDING METHODS

C. PREPARING TO CHARGE

B. PERSONAL PRECAUTIONS AND SAFETY

When charging a battery in a RV or motor home always connect

one lead of the output cable to the battery. Never connect to a

remote receptacle or other means for the purpose of remotely

charging the battery. The wires may be inadequate for handling

the charge current of this charger and may over heat. Often these

wires are bundled in with other wires which could be damaged

and lead to a direct short across the battery and charger. If this

occurs a fire can result, equipment and appliances operated

from the battery may also be damaged.

DANGER - Before using adapter as illustrated, be certain that

center screw of outlet plate is grounded. The green-colored rigid

ear or lug extending from adapter must be connected to a prop-

erly grounded outlet - make certain it is grounded. If necessary,

replace original outlet cover plate screw with a longer screw that

will secure adapter ear or lug to outlet cover plate and make

ground connection to grounded outlet.

Use of an adapter plug is not allowed in Canada.

GROUNDED OUTLET

GROUNDING PIN

(A)

(B)

ADAPTER

METAL SCREW

COVER

OF GROUNDED

OUTLET BOX

D. BATTERY CHARGER CONTROLS

NOTE: A buzz, or hum is normal when the output cables have

been disconnected and the AC power cord is still connected to

an electrical source (i.e. wall outlet).

OPERATION – Model SE-70MA

Two switches permit operation and volt selection.

Switch #1 – OPERATION SELECTOR

Mode 1 – Manual setting: Warning: This charging must be moni-

tored and stopped when the battery is charged. Overcharging

will damage the battery.

Mode 2 – Automatic setting for Conventional and Low Mainte-

nance Batteries. If you are not sure of your battery type, use the

Conventional setting.

Mode 3 – Automatic setting is for Maintenance Free and Deep

Cycle batteries.

Switch #2 – VOLT SELECTOR

Select either the 12 or 24-volt setting: Use the 12-volt setting for

a 12-volt battery and the 24-volt setting for two 12-volt batteries

hooked up in series.

MANUAL

AUTOMATIC FOR CONVENTIONAL

AND LOW MAINTENANCE BATTERIES

▲

▼

VOLT

SELECTOR

AUTOMATIC FOR

MAINTENANCE

FREE AND

DEEP CYCLE

BATTERIES

▲

12 VOLT 24 VOLT

▲

(SWITCH #1)

(SWITCH #2)

OPERATION SELECTOR

If more than one battery is to be charged, be sure the total battery

voltage is not less than that of the charger or damaged could

result to batteries and charger. Diagram for series hook up is

shown below:

Use #10 AWG jumper wires to connect batteries.

2. Attach clamps to battery posts and twist or rock back and

forth several times to make a good connections This tends

to keep clamps from slipping off terminals and helps to

reduce risk of sparking.

1. Connect and disconnect DC output clamps only after setting

any charger switches to off position and removing AC cord

from electric outlet. Never allow clamps to touch each other.

E. DC CONNECTION PRECAUTIONS

A SPARK NEAR BATTERY MAY CAUSE BATTERY EXPLOSION.

FOLLOW THESE STEPS TO REDUCE RISK OF SPARK NEAR

BATTERY:

1. Position AC and DC cords to reduce risk of damage by hood,

door, or moving engine part.

2. Stay clear of fan blades, belts, pulleys, and other parts that

can cause injury to persons.

3. Check polarity of battery posts. POSITIVE (POS, P,+) battery

post usually has larger diameter than NEGATIVE (NEG, N, -

) post.

4. Determine which post of battery is grounded (connected to

the chassis). If negative post is grounded to chassis (as in

most vehicles), see No. 5. If positive post is grounded to the

chassis, see No. 6.

5. For a negative-grounded vehicle, connect POSITIVE (RED)

clamp from battery charger to POSITIVE (POS, P,+)

ungrounded post of battery. Connect NEGATIVE (BLACK)

clamp to vehicle chassis or engine block away from battery.

Do not connect clamp to carburetor, fuel lines, or sheet-

metal body parts. Connect to a heavy gage metal part of the

frame or engine block. (Figure 2)

6. For a positive-grounded vehicle, connect NEGATIVE (BLACK)

clamp from battery charger to NEGATIVE (NEG, N, -)

ungrounded post of battery. Connect POSITIVE (RED) clip

to vehicle chassis or engine block away from battery. Do

not connect clamp to carburetor, fuel lines, or sheet-mebl

body parts. Connect to a heavy gage metal part of the frame

or engine block. (Figure 3)

7. When disconnecting charger, disconnect AC cord, remove

clamp from vehicle chassis, and then remove clamp from

battery terminal, in that order.

8. See charge period for length of charge information.

FIGURE 2: CONNECTION TO NEGATIVE GROUNDED BATTERY

F. FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE

GROUND

(NEG)

A SPARK NEAR THE BATTERY MAY CAUSE BATTERY EXPLO-

SION. TO REDUCE RISK Of A SPARK NEAR BATTERY:

1. Check polarity of battery posts. POSITIVE (POS, P,+) battery

post usually has a larger diameter than NEGATIVE (NEG, N,

-) post.

2. Attach at least a 24-inch-long 6-gauge (AWG) insulated

battery cable to NEGATIVE (NEG, N, -) battery post (not

provided).

3. Connect POSITIVE (RED) charger clamp to POSITIVE (POS,

P,+) post of battery.

4. Position yourself and free end of cable as far away from

battery as possible - then connect NEGATIVE (BLACK)

charger clamp to free end of cable.

5. Do not face battery when making final connection.

6. When disconnecting charger, always do so in reverse

sequence of connecting procedure and break first

connection while as far away from battery as practical.

7. A marine (boat) battery must be removed and charged on

shore. To charge a battery on the boat requires equipment

specially designed for marine use.

POSITIVE

NEGATIVE

CHARGER

POWER

CORD

TO GROUNDED

POWER OUTLET

24" 6 GAUGE

CABLE

BATTERY

FIGURE 3: CONNECT NEGATIVE BATTERY

CLIP TO 24 INCH CABLE END

G. FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE VEHICLE

H. AC POWER CORD CONNECTION INSTRUCTIONS

DANGER - Never alter AC cord or plug provided - if it will not fit outlet, have proper outlet installed by a qualified electrician. Improper

connection can result in a risk of an electric shock.

This battery charger is for use on a nominal 120-volt 60 Hz circuit.

I. OPERATION INSTRUCTIONS

1. These battery chargers are equipped with a self-resetting

circuit breaker. This device protects the charger from

temporary overloads. In the event of an overload, the circuit

breaker will trip open, and after a short cooling off period,

will reset automatically. This process is known as cycling

and can be recognized by an audible clicking sound.

2. These battery chargers are equipped with an electronic

control circuit which automatically governs the charge rate

to your battery. The charger will satisfactorily charge

Maintenance Free and Conventional batteries.

J. OUTPUT VOLTAGE

This charger is for use with 12 volt lead-acid batteries. The SE-70MA is for 12 and 24 volt systems.

10 Amp 12 Volt setting: The initial charge current should be 10 amps gradually tapering throughout the charge cycle to 5 amps. Though

not indicated, battery voltage will gradually rise to approximately 14.3 volts, then hold constant throughout remainder of charge cycle.

When the battery reaches 14.3 volts and charge current drops to 5 amps the charger will turn off. Initially the battery voltage will drop from

its 14.3 volt level fairly quickly. When 13 volts is reached, the charger will again turn on, until the 14.3 volt, 5 amp condition is met. As this

action continues, on time will decrease to a few seconds while off time increases to a range of several minutes to an hour. on/off times

vary with size, type and condition of battery.

K. INDICATION OF PROPER OPERATION TO A DISCHARGED BATTERY

BUT OTHERWIDE IN GOOD CONDITION

N. STORAGE

Store battery charger in a dry area.

The battery charger is designed to work automatically. However, If a problem does occur, check the following:

M. TROUBLESHOOTING

PROBLEM POSSIBLE CAUSE SOLUTION

No meter reading. Connections are reversed. With charger unplugged, reverse clamps and

reconnect (rock back and forth to bite in).

Poor electrical connection. Clean clamps and battery posts and reconnect

(Rock clamps back and forth to bite in.)

AC outlet is dead. Plug in a lamp or other appliance to check for

voltage.

Battery is defective (will not Have battery checked.

accept charge).

Charger will not turn on Battery recently charged as result Battery does not need charging.

(when properly connected of driving and is fully charged. (Turning on headlights will lower battery

to power. voltage in a few seconds and charger should

then turn on.)

Charger will not turn OFF. Battery has problem and will Have battery checked.

not take full charge.

Meter needle pulses Two or more batteries Do not parallel charge.

(fluctuates)every few connected in parallel.

seconds

AFTER THREE HOURS

without slowing down.

Battery of 200 ampere hours Requires more time to charge: continue

or larger. charging.

Battery is connected to applicaton that

draws a small current (such as an

interior light).

Meter needle moves to extreme Severely discharged battery (but Allow charging to continue until battery has

right, remains a short time, then otherwise good battery). recovered sufficiently to take a charge. (Circuit

returns to zero, accompanied breaker will continue to cycle and needle will

by a clicking sound. swing side to side until battery has recovered.)

Battery is defective (will not accept Have battery checked.

charge).

Charger is cycling after circuit breaking Wait until charger automatically resets itself

overload. (DO NOT RETURN FOR SERVICE).

The approximate required time to bring a battery to full charge

state depends upon the number of ampere hours (AH) depleted

from the battery. AHs are determined by multiplying the number

of hours by the number of amps supplied to a load.

For example - If a load was connected to a battery, which drew 7

amps for a period of 5 hours, the battery will have supplied 35

AH. The approximate recharge time would then be calculated by

dividing the 35 AH depleted from the battery, by the ampere charge

rate of the charger. To allow for tapering off of the charge rate, add

25 percent to the charge time.

Indications of a fully charged battery are:

1. When the meter indicates an intermittent current flow to the

battery.

2. A hydrometer reading of the specific gravity of the electrolyte

(fluid) of a battery in good condition should be between 1.250

and 1.285.

3. When a battery reaches 80-85% of full charge, bubbles will

appear on the surface of the fluid. As the battery nears full

charge, bubbling will become more noticeably active.

4. The time required to charge two 6-volt batteries connected

in series will be the same as for one 12-volt battery of

equivalent size.

NOTE: This charger will shut off when the battery is fully

charged and will turn back on automatically when the battery

needs to be charged again.

Do not charge two 12-volt batteries in parallel.

L. CHARGE PERIOD

LIMITED WARRANTY

SCHUMACHER ELECTRIC CORPORATION, 801 BUSINESS CENTER DRIVE, MOUNT PROSPECT, ILLINOIS, 60056-2179 MAKES

THIS LIMITED WARRANTY TO THE ORIGINAL PURCHASER AT RETAIL OF THIS PRODUCT. THIS LIMITED WARRANTY IS NOT

TRANSFERABLE.

Schumacher Electric Corporation warrants this battery charger for 2 years from date of purchase at retail against defective material

or workmanship. If such should occur, the unit will be repaired or replaced at the option of the manufacturer. It is the obligation of the

purchaser to forward the unit together with proof of purchase, transportation and / or mailing charges prepaid to the manufacturer

or its authorized representative. This limited warranty is void if the product is misused, subjected to careless handling, or repaired

by anyone other than the factory or other authorized factory representative. The manufacturer makes no warranty other than this

limited warranty and expressly excludes any implied warranty including any warranty for consequential damages.

This is the only express limited warranty and the manufacturer neither assumes nor authorizes anyone to assume or make any

other obligation towards the product other than this express limited warranty. The manufacturer makes no warranty of merchant-

ability or fitness for purpose of this product and expressly excludes such from this limited warranty. Some states do not allow the

exclusion or limitation of incidental or consequential damages or length of implied warranty so the above limitations or exclusions

may not apply to you. “This warranty gives you specific legal rights, and you may have other rights which vary from state to state.”

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Schumacher Electric SE-70MA Owner's manual

Brand: Schumacher Electric

Model: SE-70MA

Category: Battery chargers

Type: Owner's manual

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